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Finding the Fourth Proportional to 323,760.85, 485,364.37 and 124,224.45

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Solution

The fourth proportional to 323,760.85, 485,364.37 and 124,224.45 is: 186,230.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,760.85 : 485,364.37 = 124,224.45 : x
  2. Step 2: Convert to fraction form
    323,760.85/485,364.37 = 124,224.45/x
  3. Step 3: Cross multiply
    323,760.85x = 485,364.37 × 124,224.45
  4. Step 4: Simplify right side
    323,760.85x = 60,294,121,912.85
  5. Step 5: Solve for x
    x = 60,294,121,912.85/323,760.85
  6. Step 6: Final answer
    x = 186,230.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.